Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.!

Samsung C6712 Star II DUOS hard reset

Use this method to hard reset your Samsung C6712 Star II DUOS phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.

Menu > Settings > ResetReset various settings to the factory default values. Select which settings to reset. You must enter your device passwordto reset the settings.

Your device freezes or has fatal errorsIf your device freezes or hangs, you may need to close programs or reset the device to regain functionality. If yourdevice is still responsive but a program is frozen, close the program using the task manager. If your device is frozen andunresponsive, remove the battery, replace the battery, and turn on the device.